Multiple continuous-wire-drawing machine



Dec. 20, 1927. 1,653,097

H. W. HODGSON MULTIPLE CONTINUOUS WIRE DRAWING MACHINE Filed Nov. 9, 1925 5 Sheets--Sheel l H. W. HODGSON MULTIPLE CONTINUOUS WIRIIDRAWING MACHINE Dec. 20, 1927.

Filed Nov. 9, 1923 3 Sheets-Sheet?? Dec. 20, 1927. l 1,653,097

H. w. HoDGsoN MULTIPLE CONTINUOUS WIRE DRAWING MACHINE Filed Nov. 9, 1925 3 Sheets-.'Sheetl 5 Patented Dec, 2Q, 1927. ,i Y if gg? tittll filerv'i ,-'NT I @,ttt. 17

HAROLD `W. HGDGSN, OF `FITCIIVBUIRG, MASSACHUSETTS. y

MULTIPLE CONTINUOUS-WIRE-DRAWING MACHINE. v Application `filedV November 9, 1923.y Serial No. 673,733.

This invention relates to a multiple ma- 1nldwin Hodgson on September 10, 1907, in chinel for continuons. wire drawing. The such a wayy as toefficiently draw the wire principal object of the invention is tol pro-v through a much larger number of dies than 575v vide a wire drawing bench with means they contemplated and also involves thein- Y 5 whereby the wire can be drawn consecutively vention set forth in my lprior application through a large number of holes, as'foreX- for patent, Serial No. 646,687 filed June 30, ample fifteen, without materially enlarging 1923, which sets' forth certain gea-ring rela`v the bench over that that would be required tionshipsand other' combinations vby which 60 for drawing wire through tive holes. the principles of the said Carter and Hodg- Another object of the invention is to proson patent may be carried out in such a way vide a machine of this character capable of as to avoid slipping and consequent disaddrawing through one, two, three, four, tive, vantages.y This invention involves the apsin, eight, nine, ten, twelve `or lifteen holes plication of the saine principletoa difter- 65 at the option of the operator. This is aeent number of drums and furthermore its v complished by using` what is known as the extension to the so-called slinger multiple slinger block on `each of the vertical shafts "block and the combinationy ofthe Samev in of the machine and employing on it only such a way as'to make possible agreatex# drawing through drums and notl providing tension of the continuons wire drawing art 70 it with any winding drum except on the last as set forth above.

shaft, but, on the contrary, talring the wire i havershown the invention as appliedto from the last drum on one *slingerl block and a machine comprising a wire drawing bench drawing it through the iirst drum on the 10 and operated byamotor 11 through change next one. The slinger block is also modified speed gearing 12 connected with a shaft 13 75. by arranging a specific relationship between and driving ashaft 14 which l willcall the the gears to provide .for drawing without first of a' series of sectional shafts. It will slipping on the drums. rlhe invention also be noted that other shaftsl areA shown as loinvolves the provision of a locking device cated in alignment with this numbered 14a,A in the slinger block to facilitate Stringing 14th, 14C, lid. These live shafts inthe presso np and having other functions, as will apent instance vconstitute the main sectional.

pear. driving shaft for the machine and, as is Additional objects, and advantages of the the case in the above mentioned patent, they invention will appear hereinafter. Y are connected together' by differential gear- Reference is to be had to the acconipanying. i u 85 ing drawings, in which In a machine such as thatwshownin the Fig. 1 is a plan of a. wire drawingfbench drawings having five `0r more dies I use av COIiStuCed H1 aCCOldnCe With this llvensmall Sun 'gear 111 the first7 Second and third tion; planetary gears, a largel planetgear on vthe F 2 is a SidevveW 0f the Same; first section, and a smaller planet -gear on 90 Fig. 3 is a sectional view showing the conthe second section and a slightly smaller one 10 nection ofthe last two of the sectional shafts at the third Section, ln the fourth planetary with each other; gearl` use the combination of two gearsv so Figs. t and 5 are opposite face views of a arranged that each has an equal distribution` portion of the same taken in the direction of poweror pull and for that reason Ifcan'e of the arrows t and 5 respectively in Fig. simplify` this fourth differential. i K- 3; and On the lirst sectional shaft 14 iis keyeda (3 a central sectional viewthrough member 15 for carrying rthe planetary pinthetiret slinger bloc-k and its driving mechions. rlhis member has a cylindrical hub .on

anisin and showing how the 'next shaft of which is freely mountedy to rotatel inde- 19,9',

the

ctional series is driven. pendently thereof a bevel gearlconstantly tion is designed to apply the in mesh with abevel gear 17 lined ena 'verw I forth in U. Patent No. tical shaft 18 rthis mechanism nsedffor te. T-Joodbonse Carterand. the firstdrawinggiihrnnghdrum Y 19 of the first slinger block and the' drawried by the member 15.

' member ing through drums 59 and 69 thereof to draw vthe Wire through the first set of die blocks in the holderI 20. Tntegrally mounted, preferably by being cut on the shank on this bevel gear, is a sun Iear Q1. Thetlange of the member 15 carries in this case three studs 22 on each of which is a planetary pinion 23. These planetary pinions constantly vmesh With the gear 21 which they surround and they also have integral pinions 26 thereon which mesh with an internal gear or rack '24 mounted on a hub 25 keyed on the next length of shaft 11i-a. lilith resistance on both shafts 1d and 14a they both rotate, the former being the driving and the latter the driven shaft. .it is te be noted that the internalV gear 24e bears a ratio te the sun gear 21 of 2% lto 1 or 8 to 8 as sho'vvn. On the 15 are pivoted pawls 2T three of Athem bein used preferably. These paivls are located to swing freely on pivots 28 car- Centrifugal force is depended upon Whenever the machine is running at Werking speed, for throwing them out into a position to engage in the gear Q4 Whenever the Wire breaks or is running off. 1n that case these paivls transmit the power positively Without any let-up in the operation of the machine.

I also rprovide a sliding` collar 29 on the hub of the gear 16 adapted to be operated by a rocking lever 30 to move it back and forth. On this collar are pins 31, shown as tivo in number, movable through the vveb of the Vbevel gear into slots 32 in the member 15.

This constitutes a locking device for locking the gear 16 to the member 15, and therefore to the shaft 14. This is provided to facili- V tate Stringing up the machine as Will be obvious to those skilled in the art. It also can be used for the purpose of performing the function of the pawls 27. In other Words,

Vthe paivls 27 constitute an automatic means for operating the machine positively in case of the end of the Wire going on through the first or any succeeding die and thus driving the machine' continuously. If these pawls were not used when the Wire end came through the vfirst or any succeeding die, that' sun gear Would Vrevolve and the planet gear and the remainder of the machine would be stationary.

These pavvls automatically prevent that occurrence. If the pavvls are not used, or if for any reason they should not Work, the locking device can be manipulated by hand and the operationfcontinued'in that Way. However. it is not intended that that should be done and the p'aWls constitute the simplest means for operating the rest of the machine when the wire is running off.

The shaft 14a is provided with a gear 16L for driving the next 'drum in the same Way as has been describedl and it is also provided With pinion member 15, locking device 29,

and a differential just as described above, except that the ratio is slightly smaller. ln this case the internal gear on the hub 25 attached to the shaft 14a bears the ratio to the sun gear on the hub of the gear 16"l on the shaft 14a of 2% to 1, or 19 to 8. New the shaft 14a becomesthe driving shaft for the driven shaft 14". The other features and operation are the same at this point.

For the purpose of driving the next shaft 14C from the shaft 14h, which novT becomes a drivingA shaft I use the same arrangement but With a speed ratio of 17/8 to 1 or 15 to 8. But for driving the last shaft 14d from the shaft 14C I find that While a dierential gear is required, it not necessary to have a difference in the speed ratio, and in fact these tivo shafts should be so connected by the differential that equal power can be obtained from the other side. In other Words to secure an equal gear ratio in this construction I have simplified the construction as shown in Figs. 3 to 5 adopting some of the features above described. y

On the shaft 14C is keyed a member 35 Which is provided with a comparatively thin periphery having perforations 36 for a pluralit-y of bevel pinions 37, three heilig shown inthe present instance. These bevel pinions are mounted on radial axes as is Well understood in this art and they constantly mesh gear 16c Which corresponds vvith the bevel Vgear 16, previously described and is intended to drive the drum 19C in the same Way.

The bevel pinions 37 also mesh With a bevel gear 89 of the same size as the bevel gear 38 and the same number of teeth. This bevel gear 39 is on a hub t() keyed to the shaft 14d. In this case this differential Works similar to the sun gear.' differential shown in 6 except that the poiver transmission is equal on both sides. The device is provided with locking pins 41 entering slotsor depressions 12 in the member 35 and operated in the same Way as described above and for the same purposes. An internal rack 116 is also employed With paivls V17 the same as in the other device in all respects.

l have referred to the use of the so-called slinger block. 1t. is to he understood how# ever that I de not use the ordinary slinger block but Vprovide certain improvements in connectionthereivith as Will appear. A1 Will describe one of these blocks on the shaft 18.

It has at the bottom the drawing through isc There are pawls 54 engaging this rack 52 like the pawls shown at the bottom of F ig. 6. The drum 19 is rotated from the spindle 18 through the differential and that dierential is arranged to provide'a gear ratio ofvl'?` to 8 or 2% to 1. On the bushing 53`is loosely mounted the second drum 59 of this slinger v block, so-called. Y c n On this bushing 53 there is keyed a cage 5 which is provided with a yseries of bevel pinions 56 meshing with two equa-l bevel gears 57 on opposite sides, one of them fixed on the drum 59 and the other connected with the top drum 69 which, instead of .beingv a winding drum, as iu any ordinary slinger block, is a drawing through drum. On account of this arrangement this drawing through drum 69 is geared to the drum 59 at an equal speed ratio. `There-are also the pawls 54 for meshing with the rack58 onthe cage for the same purpose as the similar pawls above described. The object of using this combination of gearing in the slingerl block is toavoid slipping of the wire on the drums when drawing` through a number of holes consecutively. As the elongation of wire is controlled by the differential gears when using single drums, the same controlling lmedium 'functions when using multiple drums. As the pull of the wire on a single drum controls the speed ofthe succeeding 4 drums, so does the pull on the wire of two or three drums on the same spindle control the speed of the succeeding two or three drums of another spindle geared t-o it by differential gearing. All the drums are drawing through drums except the top drum on the fifth spinl dle. which is used as the winding drum preferably, no matter how many drafts are being v made. Y l

For the purpose of cooling the drums effectively I have shown the spindleV 18 as vhollow and provided with a passagenfor Vconducting water to the top of the spindle. This is then conducted down through the three drums of the slinger block insidel their wire drawing and holding surfaces, these drums beingprovided with internal spaces 61 for receiving the water. The wateris drained out from each drum into the drum below through drainY pipes 62 and from the last drum into a receiving space 63 and thev out-y letf pipe 64 as shown in my U. Srlatent, No. 1,390,714. This prevents excessive heat on each drum and eliminates the possibility of the ligure 8 being formed `by the wire. It also enables the machine to be run `faster than it would otherwise.

` Operation.

quired )to draw the first reduction than any of the succeeding ones. On account of the standard sizes of dies and wire now used, sufficient poweror pull has to be transmitted through the first differential .to `drive all the succeedingreductions.` Notas much power or pull is transmitted through each succeeding ldifferential as the wire gets smaller and smaller. Therefore the smaller isfthe ratio in the dierentials aswe near the finishing point. y Y

A length of wire.: suiiicient to reach the usual wire, holder on the first or bottom drum of the firstl vertical shaft is first drawn through the first die or draw plate 20 by any known means. The end of the wire is fasc which carries the planetary pinionslresulting in the sunv gear being held stationary,

the planetary pinions revolve around it and Y driverthe internal gear at increasedv speed, The first locking lever 30 is now pressed rinto lposition to lock the first set of 'sun and planetary gears intoa solid drive. VN'owithe 'n first setof slinger drums commences to turn.

The machine `is run preferably until there f are about six turns of wire around the bot tom drum 19-on the rst spindle. Then'the machine is stopped andthe wire is loosened from the wire holder. Two turnsY of wire are taken off the first drum, passed varound the lower guide pulley 66 at the rear ofthe machine, then lby the usual meansthrough a die in a die holder 70 at the rear. The wire 1s now led into the wire holder as before mentioned and led through a. groove or s lot so that the wn'e will move ,on the second drum. c

The machine is started again at: slow speed with the locking lever andloclring plate left in locking position. The drums onl the first spindle now rotate freely. `The machine is rununtil a similar 'quantity of wire isv wound on the second drum 59, thenfthe operation upper'of the two guide pulleys 66 at the rear lthrough the upper die in the die holder 70 at the rear. Thelprevious operation is repeated until six turns) of wire are wound on the top drawing c* through r'drum 69 on the .first spindle. Y. l f `When sufficient turns of wire Vare wound -repeatechthe wire being passed around the on the tfop drawing throughk drum 69 on the firstv spindle 18, the Vlocking'pins on the slinger drum are pushed in to connect up the drum positively. The wire is loosened out Vofthewire holder, two turns of wiretaken .veo

from the top drumand theuwire is assed over and under the two guide pulleys l and 72 on the front of the machine. From there it goes through the second die or die holder 2()a on the front of the machine and to the first drum on the second spindle. Theprevious operations are then repe-ated'over and over until the whole machine is strung up.

On reaching the finishing size of wire it is fastened on the winding drum 19d. "Ihe section ofthe shaft 14d for driving this drum has no sun and planetary gearing. The machine is started at slow speed here i and allowed to run until the wire is tight l ing drum on the fifth spindle can be used or the top drum on the fourth spindle and f the winding drum on the fifth spindle to get the same r-esults. From this simple explanation it will be seen that an operator can arrangethe device to draw either one, two, three, four, five, six, eight, nine, ten, twelve or fifteen holes at one continuous operation by usingrthe multiple drums on the spindles. It is not advisable to use one drum on the fourth spindle and the three drums on the fifth spindle for four hole work as the pull of the wire'on the fourth spindle would not balance the pull of the wire on the three rdrums on the fifth spindle. It is better to usethe two top drums on the fourth and vfifth spindles or the top drumsV only on the second, third, fourth and fifth. In such case each drum would then control the speed of the succeeding drinn or drums through the differential gearing on the line shaft. l

Although I have shown herein a certain mechanism disclosed in my prior application, No. 646,687, filed June 20, 1923, I do vnot'claim herein the said mechanism except .made therein by any person skilled in theV arty without departing from the scope of vthe invention as expressed in the` claims.

Therefore I do not wish to be limited to all vthe details of construction or to the acknowledged old forms of wire `drawing elements herein shown and described but what I claim is 1. In a multiple continuous wire drawing machine, the combination with a series of shafts for drawing through drums, an equal number Yof shafts ,arrangedto be driven one from another in series', a gear loosely mounted on the driving end of each of said shafts and having` means for driving its drum shaft "positively therefrom, Vdifferential gearing for driving each sectional shaft fromthe next one, the'first differential comprising a small sun gear and a large planet gear, the intermediate differentials .each

comprising a relatively small sun gear and shafts arranged to be driven one from an# other in series, differentialgearing for driving each shaft from the nextone, the speed ratio ofthe differential gearingbetween the first two shafts being 84 to 3, the correspondingI ratio between the second and third shafts being substantially as 19 to 8, the

on each of the first named shafts, the n speed ratio between the third and fourthf shafts vbeing 15 to 8 and that between the last two being equal,- whereby the wire will be drawn without slip on the drums, a series of transverse shafts equal in number to the sectional shafts, means for driving each transverse shaft positively from its sectional shaft', means for differentially connecting the first drum ouv-each transverse shaft with that shaft to rotate it at a relative speed of 17 to S, differential gearing for driving the seconddrum 'of each of said transverse shafts from the first one at a speed ratio of 17 to 8, to the transverse shaft, and differential gearing for driving` the third drum on each of the transverse shafts from thesecond one atan equal speed ratio. v

3. In a continuous wire drawing machine, the combination with a series of shafts arranged to be driven one 'from` another in series, Vof differential gearing for driving eachshaft fromtlie next one, a series of transverse shafts equal in number to the sectional shafts,/Ineafns for driving each transverse 'shaft positively p 'fromits'` sectional shaft, a series Vof drawing through Adrums on each of the transverse shafts, means for connecting the first drum on each transverse shaft with that shaft to rotate differentially, differential gearing for driving the second drum of each vof saidk transverse shafts from the first one at a speed ratio ofl? to 8 and diderentialgearing.for

the third drum on each of the transverse shafts from the second one at an equal speed ratio.

' 4. In a Wire drawing machine, the coni- 5 bination with a shaft, of three drawing through drums on the shaft7 differential gearing,r for connecting the first drum with the shaft to rotate it at the ratio of 17 to 8,

diierential gearing for driving one of the ingv for connectingthe seeond .and third drums at an equal speed ratio.

In testimony whereof I have hereunto affixed my'signature. n

" HAROLD W. HODGSON. 

